Helps you become a DNS expert — and gives experts something new to add to their toolkit
So what exactly are domains and DNS, and how do they differ?
Domains are the addresses people use to reach resources on the Internet. They are made up of several levels separated by dots, for example example.com. Domains make addresses easy to remember, replacing a numeric IP address.
DNS (the Domain Name System) is the system that translates domain names into their corresponding IP addresses. When you type a domain name into your browser, DNS finds the right IP address and connects you to the server that hosts the requested resource.
DynDNS (Dynamic DNS) is a service that updates a domain's DNS records automatically whenever a device's IP address changes. This is especially useful for people with a dynamic IP address (as most home providers assign). With DynDNS you can tie a permanent domain name to a changing IP address, making it easy to reach remote services and devices (such as cameras or servers) without updating DNS records by hand every time.